Automatic assembly mechanism for water meter rotating lead seal

Abstract

This invention discloses an automatic assembly mechanism for a water meter rotary lead seal. This mechanism guides the lead wire through the meter casing hole and back into the lead seal hole, then rotates the lead seal cover for mechanical locking. A water meter positioning mechanism precisely positions the water meter. A lead seal positioning and feeding mechanism is installed opposite to the water meter positioning mechanism to position the lead seal and push it towards the water meter. A lead wire guide mechanism is mounted on the water meter positioning mechanism via a lower guide connecting plate, guiding the lead wire that has not passed through the casing hole. An upper lead wire guide mechanism is installed on the side of the water meter positioning mechanism, allowing the lead wire passing through the meter hole to move along the path of the upper lead wire guide mechanism. A lead wire pull-back mechanism tightens the lead wire passing through the lead seal hole. A pressing and tightening mechanism controls the curvature of the lead wire during assembly and tightens the lead seal cover to complete the assembly. This invention enables highly efficient and automated soft lead wire lead seal assembly, improving production efficiency and reducing the error rate.

Description

Technical Field

[0001] This invention relates to the field of intelligent water meter assembly technology, and in particular to an automatic assembly mechanism for a rotating lead seal on a water meter. Background Technology

[0002] The water meter lead seal is the final and most crucial step in water meter assembly. It serves as a mark confirming the water meter's accuracy and ensuring it has passed inspection, and is installed to prevent water theft and leakage. Currently, most water meter manufacturers install the lead seal manually, which is time-consuming, labor-intensive, and inefficient. Furthermore, the plastic rotary lead seals used by most manufacturers are small, with an inner hole of only 2.1mm and a lead wire of only 0.3mm. Each time the lead wire is threaded through the hole, it's like threading a needle, causing eye fatigue for workers over time and significantly impacting production efficiency.

[0003] Patent CN106932619A proposes a U-shaped tube with holes aligned with the lead seal. The lead wire is passed through a guide tube and extends from the other end, achieving rapid wire insertion. This patent also proposes an auxiliary tool for lead seal installation, but it still has the following drawbacks: it does not reduce the number of workers, the assembly process is not simplified, it cannot significantly improve production efficiency, and the auxiliary tool is not suitable for installing water meter lead seals, as the water meter hole is close to the casing, causing interference between the auxiliary tool and the water meter. Summary of the Invention

[0004] Purpose of the invention: To address the above-mentioned problems, the purpose of this invention is to provide an automatic assembly mechanism for rotating lead seals on water meters, thereby improving the efficiency of water meter assembly and filling the gap in the installation mechanism for flexible cord lead seals.

[0005] Technical solution: An automatic assembly mechanism for rotating lead seals of water meters, including a workbench and a water meter positioning mechanism, a water meter lead seal positioning and feeding mechanism, a lead wire pull-back mechanism, a lead wire lower guide mechanism, a lead wire upper guide mechanism, and a pressing and tightening mechanism respectively installed on the workbench.

[0006] The water meter positioning mechanism and the water meter lead seal positioning and feeding mechanism are arranged at intervals relative to each other. The lead wire guide mechanism is installed on the water meter positioning mechanism, and the lead wire pull-back mechanism is installed on the water meter lead seal positioning and feeding mechanism. The lead wire guide mechanism and the lead wire pull-back mechanism are arranged at intervals relative to each other, and the lead wire guide mechanism is located on one side of the water meter positioning mechanism. The pressing and tightening mechanism is located between the water meter positioning mechanism and the water meter lead seal positioning and feeding mechanism.

[0007] A water meter positioning mechanism is installed on the workbench to accurately position the water meter. A water meter lead seal positioning and feeding mechanism is installed opposite to the water meter positioning mechanism to position the lead seal and push it closer to the water meter. A lead wire guide mechanism is installed on the water meter positioning mechanism via a first connecting plate to guide the lead wire that is about to pass through the meter housing hole. The lead wire guide mechanism is installed on the side of the water meter positioning mechanism and fixed by a first profile frame. The lead wire passing through the water meter hole will move along the path of the lead wire guide mechanism. A pressing and tightening mechanism is suspended on and in front of the water meter positioning mechanism via a second profile frame to control the curvature of the lead wire and tighten the lead seal. A lead wire pull-back mechanism is installed under the support plate of the water meter lead seal positioning and feeding mechanism to tighten the lead wire passing through the lead seal hole.

[0008] Furthermore, the water meter positioning mechanism includes a first base, a clamping cylinder, a water meter positioning seat, a clamping mounting seat, a clamping plate, and a clamping head. The first base is mounted on a workbench, the water meter positioning seat is mounted on the upper surface of the first base, the clamping mounting seat is mounted on one side of the first base, the clamping cylinder is mounted on the upper part of the clamping mounting seat, and the clamping head is connected to the clamping cylinder through the clamping plate and is located above the water meter positioning seat. The clamping head applies downward pressure to the water meter.

[0009] Furthermore, the lead wire guiding mechanism includes a lower guide connecting plate, a guide propulsion cylinder, and a lower lead wire guide. The guide propulsion cylinder is mounted on one side of the water meter positioning mechanism via the lower guide connecting plate. The lower lead wire guide is connected to the guide propulsion cylinder and is used to capture and guide the lead wire. The lower lead wire guide captures and guides the lead wire.

[0010] Ideally, the lower lead wire guide has a V-shaped cross-section. The smaller top dimension and larger bottom dimension allow it to capture softer lead wires, while the smaller top dimension prevents interference with other mechanisms during operation.

[0011] Furthermore, the water meter lead seal positioning and feeding mechanism includes a second base, a propulsion cylinder, a propulsion support plate, and a lead seal positioning fixture. The second base is mounted on the workbench, the propulsion cylinder is mounted on the upper part of the second base, and the lead seal positioning fixture is connected to the propulsion cylinder through the propulsion support plate, with the lead seal positioning fixture facing the water meter positioning mechanism. The lead seal positioning fixture is placed at the front of the propulsion support plate, and the propulsion cylinder completes the lead seal feeding action.

[0012] Ideally, the lead seal positioning fixture includes a first positioning block, a second positioning block, a guide block, and a spring. The first positioning block, the second positioning block, and the guide block are arranged in a straight line at intervals at the front end of the push support plate. The first positioning block and the guide block are respectively connected to the push support plate. The second positioning block is connected to the guide block through the spring. The first positioning block is provided with a cylindrical shaft, and the second positioning block is provided with a cylindrical groove. The cylindrical shaft and the cylindrical groove are matched. The spring pushes the guide block to push the second positioning block, so that the lead seal is pressed between the first positioning block and the second positioning block.

[0013] Ideally, the lead wire pull-back mechanism includes a pull-wire cylinder, a finger-clamping cylinder, a clamping fixture, and a clamping connecting plate. The pull-wire cylinder is installed at the lower part of the push support plate, which has an inverted T-shaped structure with a rectangular notch on its horizontal plate. The lead seal positioning fixture is installed at the front edge of the rectangular notch. The finger-clamping cylinder is vertically inserted through the rectangular notch and connected to the push support plate through the clamping connecting plate. The clamping fixture is connected to the cylinder shaft at the upper part of the finger-clamping cylinder.

[0014] Furthermore, the lead wire guiding mechanism includes a first profile frame, a cross slide module, a module connecting plate, a rotary cylinder, a cylinder connecting plate, and an upper lead wire guide rod. The first profile frame is installed on the workbench, the cross slide module is installed on the upper part of the first profile frame through the module connecting plate, the rotary cylinder is installed on the cross slide module through the cylinder connecting plate, and the upper lead wire guide rod is connected to the rotary cylinder.

[0015] The rotary cylinder is used to drive the upper lead wire guide rod to rotate, so that the lead wire, which originally passed through the hole in the water meter casing vertically upward, is changed in direction by the rotation of the upper lead wire guide rod.

[0016] The lead wire guide rod is thicker at the rear end and thinner at the front end. The front end has an open cylindrical groove, and the end of the cylindrical groove that is close to the water meter housing hole has a flared opening, which better captures the lead wire passing through the water meter hole. At the same time, the open cylindrical groove can also be better removed after the lead seal is installed.

[0017] Furthermore, the pressing and tightening mechanism includes a second profile frame, an electric cylinder, a tightening connecting plate, a rotary motor, and a guide and tightening rod. The second profile frame is n-shaped and is installed on the workbench between the water meter positioning mechanism and the water meter lead seal positioning and feeding mechanism. The electric cylinder is installed on the upper part of the second profile frame. The rotary motor is installed on the second profile frame through the tightening connecting plate, and the guide and tightening rod is connected to the rotary motor.

[0018] The tightening connecting plate is used to support the rotary motor, which transmits rotational motion to the guide and tightening rod.

[0019] Ideally, the guide and tightening rod is vertically positioned with a deep horizontal groove on its bottom surface, and a shallow V-shaped groove perpendicular to the deep horizontal groove is also formed on the guide and tightening rod. After the lead wire guiding mechanism guides the direction of the lead wire, the shallow V-shaped groove can dynamically adjust the curvature of the lead wire at the orifice of the water meter casing.

[0020] The automatic assembly of the above-mentioned water meter rotary seal automatic assembly mechanism includes the following steps:

[0021] S1: The water meter and the lead seal are loaded by a robot and placed in the water meter positioning seat and the lead seal positioning fixture.

[0022] S2: The clamping cylinder is activated, the clamping head presses down to apply clamping force to the water meter, and the spring in the lead seal positioning fixture applies clamping force to the lead seal, thus completing the positioning of the water meter and the lead seal;

[0023] S3: The propulsion cylinder is activated, the propulsion support plate drives the lead seal to approach the water meter, the guide propulsion cylinder extends and brings the upper end of the lower lead wire guide close to the water meter housing hole, the lead wire contacts the lower lead wire guide during the forward movement, and passes through the water meter housing hole along the groove in the lower lead wire guide under the action of thrust;

[0024] S4: The initial position of the upper lead wire guide rod is directly above the water meter housing hole. After the lead wire passes through the water meter housing hole, it goes straight into the cylindrical groove of the upper lead wire guide rod. The cross slide module is activated, and at the same time the rotary cylinder slowly rotates, causing the lead wire to make an arc motion and move away from the water meter, slowly approaching the lead seal.

[0025] S5: The guide and tightening rod moves down and uses the "V" groove to hold the lead wire in place to prevent it from swaying left and right. At the same time, it presses down on the lead wire to reduce the curvature of the bent lead wire and keep the head of the lead wire parallel to the lead sealing hole. The smaller curvature ensures that the lead wire will not get stuck.

[0026] S6: The upper lead wire guide rod is horizontal to the lead seal hole and slowly approaches it, and the lead wire begins to pass through the lead seal hole;

[0027] S7: When the lead wire slowly passes through the through hole, the clamping finger cylinder clamps inward, the clamping fixture holds the lead wire, and the pulling cylinder retracts, moving away from the lead seal. At this time, the guide cylinder drives the lower lead wire to retract downward, no longer guiding the lower lead wire, and also avoiding collision with other mechanisms.

[0028] S8: The guide and tightening rod moves upward, and the pushing cylinder and the tightening cylinder stop moving when they reach their stroke. At this time, the lead wire is tightened and the lead seal is close to the water meter housing hole. The guide and tightening rod moves downward and clamps the upper shell of the lead seal. The rotary motor drives the guide and tightening rod to rotate 90° to tighten the lead seal.

[0029] Beneficial effects: Compared with the prior art, the advantages of the present invention are:

[0030] 1) The water meter is threaded through a guide mechanism and by changing the curvature of the lead wire, resulting in a simple structure and low cost;

[0031] 2) It fills the gap in the automatic assembly of lead wire seals, realizes efficient and automated lead seal assembly, and greatly improves production efficiency;

[0032] 3) The automatic assembly mechanism for water meter lead seals replaces manual labor, greatly reducing the human error rate. Attached Figure Description

[0033] Figure 1 A schematic diagram of a water meter sealed with a plastic rotary lead seal;

[0034] Figure 2 A schematic diagram of the automatic assembly mechanism for water meter lead seals;

[0035] Figure 3 A schematic diagram of the water meter positioning mechanism and the lead-line guide mechanism;

[0036] Figure 4 A schematic diagram of the water meter lead seal positioning and feeding mechanism and the lead seal pull-back mechanism;

[0037] Figure 5 This is a schematic diagram of the guide mechanism on the lead wire;

[0038] Figure 6 This is a schematic diagram of the upper lead wire guide rod.

[0039] Figure 7 This is a schematic diagram of the pressing and tightening mechanism;

[0040] Figure 8 This is a schematic diagram of the guide and tightening rod. Detailed Implementation

[0041] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0042] An automatic assembly mechanism for rotating lead seals on water meters, such as Figures 1-8 As shown, the system includes a workbench 1 and a water meter positioning mechanism 0100, a water meter lead seal positioning and feeding mechanism 0200, a lead wire pull-back mechanism 0300, a lead wire lower guide mechanism 0400, a lead wire upper guide mechanism 0500, and a pressing and tightening mechanism 0600 respectively installed on it; the water meter rotating lead seal automatic assembly mechanism is used to pass the lead seal lead wire through the water meter casing hole and back into the lead seal hole, and finally rotate the lead seal cover to mechanically lock it.

[0043] The water meter positioning mechanism 0100 and the water meter lead seal positioning and feeding mechanism 0200 are arranged at intervals relative to each other. The lead wire guide mechanism 0400 is installed on the water meter positioning mechanism 0100, and the lead wire pull-back mechanism 0300 is installed on the water meter lead seal positioning and feeding mechanism 0200. The lead wire guide mechanism 0400 and the lead wire pull-back mechanism 0300 are arranged at intervals relative to each other. The lead wire guide mechanism 0500 is arranged on one side of the water meter positioning mechanism 0100. The pressing and tightening mechanism 0600 is arranged between the water meter positioning mechanism 0100 and the water meter lead seal positioning and feeding mechanism 0200.

[0044] The water meter positioning mechanism 0100 includes a first base 2, a clamping cylinder 3, a water meter positioning seat 4, a clamping mounting seat 5, a clamping plate 6, and a clamping head 7. The first base 2 is installed on the workbench 1, and the water meter positioning seat 4 is installed on the front of the first base 2 to accurately position the water meter 8. The clamping cylinder 3 is connected to the first base 2 through the clamping mounting seat 5. The clamping cylinder 3 has a clamping plate 6 at its front end, and the clamping head 7 is installed on the clamping plate 6 to apply downward pressure to the water meter 8.

[0045] The water meter lead seal positioning and feeding mechanism 0200 is installed on the workbench 1 opposite to the water meter positioning mechanism 0100. It includes a second base 9, a propulsion cylinder 10, a propulsion support plate 11, and a lead seal positioning fixture. The second base 9 is installed on the workbench 1, the propulsion cylinder 10 is installed on the second base 9, the propulsion cylinder 10 is connected to the propulsion support plate 11, and the lead seal positioning fixture is placed at the front of the propulsion support plate 11. The propulsion cylinder 10 completes the wire feeding action of the lead seal 16.

[0046] The lead seal positioning fixture is assembled at the front of the propulsion support plate 11 and includes a first positioning block 12, a second positioning block 13, a guide block 14, and a spring 15. The first positioning block 12 is provided with a cylindrical shaft, and the second positioning block 13 is provided with a cylindrical groove. The two are fastened to each other. The spring 15 pushes the guide block 14 forward to push the second positioning block 13 and presses the lead seal 16.

[0047] The lead wire retraction machine includes a lead wire pulling cylinder 17, a finger clamping cylinder 18, a clamping fixture 19, and a clamping connecting plate 20. The lead wire pulling cylinder 17 is directly installed under the push support plate 11. The finger clamping cylinder 18 is installed on the lead wire pulling cylinder 17 through the clamping connecting plate 20. The clamping fixture 19 is installed on the finger clamping cylinder 18.

[0048] The lead wire guide mechanism 0400 includes a lower guide connecting plate 21, a guide propulsion cylinder 22, and a lower lead wire guide 23. The guide propulsion cylinder 22 is mounted on the first base 2 via the lower guide connecting plate 21, and the lower lead wire guide 23 is mounted on the guide propulsion cylinder 22 to capture and guide the lead wire.

[0049] The lower lead wire guide 23 has a V-shaped cross-section with a small top size and a large bottom size, which can capture softer lead wires. At the same time, the small top size will not interfere with other mechanisms during operation.

[0050] The lead wire guide mechanism 0500 includes a first profile frame 24, a cross slide module 25, a module connecting plate 26, a rotary cylinder 27, a cylinder connecting plate 28, and an upper lead wire guide rod 29. The cross slide module 25 is mounted on the first profile frame 24 through the module connecting plate 26, and the rotary cylinder 27 is mounted on the cross slide module 25 through the cylinder connecting plate 28. It is used to drive the upper lead wire guide rod 29 to rotate, so that the lead wire that originally passed through the water meter housing hole 35 vertically upward is changed in direction by the rotation of the upper lead wire guide rod 29.

[0051] The lead wire guide rod 29 is thicker at the rear end and thinner at the front end. An open cylindrical groove is opened at the front end. The end of the cylindrical groove that is close to the water meter housing hole 35 has a flared opening, which can better capture the lead wire passing through the water meter hole. At the same time, the open cylindrical groove can also be better removed after the lead seal is installed.

[0052] The pressing and tightening mechanism 0600 includes a second profile frame 30, an electric cylinder 31, a tightening connecting plate 32, a rotary motor 33, and a guide and tightening rod 34. The electric cylinder 31 is mounted on the second profile frame 30, and the tightening connecting plate 32 is mounted on the electric cylinder 31 to support the rotary motor 33. The rotary motor 33 transmits the rotational motion to the guide and tightening rod 34.

[0053] The guide and tightening rod 34 is slender with a deep horizontal groove at the bottom. The lead seal 16 is locked by the rotation of the rotary motor 33. A shallow V-shaped groove is opened perpendicular to the horizontal groove. After the lead wire guide mechanism 05000500 guides the direction of the lead wire, the shallow V-shaped groove can dynamically adjust the curvature of the lead wire at the hole 35 of the water meter casing.

[0054] The working steps of the above-mentioned automatic assembly mechanism for the rotary lead seal of the water meter are explained in detail below:

[0055] S1: Water meter 8 and lead seal 16 are loaded and placed in water meter positioning seat 4 and lead seal positioning fixture 0010 by a robot;

[0056] S2: The clamping cylinder 3 is activated, the clamping head 7 presses down to apply clamping force to the water meter 8, and the spring 15 in the lead seal positioning fixture 0010 applies clamping force to the lead seal 16, thus completing the positioning of the water meter 8 and the lead seal 16.

[0057] S3: The propulsion cylinder 10 is started, the propulsion support plate 11 drives the lead seal 16 to approach the water meter 8, the guide propulsion cylinder 22 extends and brings the upper end of the lower lead wire guide 23 close to the water meter housing hole 35. During the forward movement of the lead wire, it contacts the lower lead wire guide 23 and passes through the water meter housing hole 35 along the groove in the lower lead wire guide under the action of thrust.

[0058] S4: The initial position of the upper lead wire guide rod 29 is directly above the water meter housing hole 35. After the lead wire passes through the water meter housing hole 35, it goes straight into the cylindrical groove of the upper lead wire guide rod 29. The cross slide module 25 is started, and at the same time the rotary cylinder 27 slowly rotates, causing the lead wire to make an arc motion and move away from the water meter 8, slowly approaching the lead seal 16.

[0059] S5: The guide and tightening rod 34 moves down and uses the "V" groove to hold the lead wire in place to prevent it from swaying left and right. At the same time, it presses down on the lead wire to reduce the curvature of the bent lead wire and keep the head of the lead wire parallel to the lead sealing hole. The smaller curvature ensures that the lead wire will not get stuck.

[0060] S6: The upper lead wire guide rod 29 is horizontal to the lead seal hole and slowly approaches, and the lead wire begins to pass through the lead seal hole;

[0061] S7: When the lead wire slowly passes through the through hole, the clamping finger cylinder 18 clamps inward, the clamping fixture 19 clamps the lead wire, and the pulling cylinder 17 retracts away from the lead seal 16. At this time, the guiding and pushing cylinder 22 drives the lower lead wire guide 23 to retract downward, no longer guiding the lower lead wire, and also avoiding collision with other mechanisms.

[0062] S8: The guide and tightening rod 34 moves upward, and the push cylinder 10 and the pull cylinder 17 stop moving when they reach their stroke. At this time, the lead wire is tightened, and the lead seal 16 is close to the water meter housing hole 35. The guide and tightening rod 34 moves downward again to clamp the upper shell of the lead seal 8. The rotary motor 33 drives the guide and tightening rod 34 to rotate 90° to tighten the lead seal 16.

[0063] This invention can replace manual assembly of lead seals, effectively solving the problems of difficult, time-consuming, labor-intensive, and inefficient lead wire drilling, achieving highly efficient and automated soft lead wire lead seal assembly, improving production efficiency, and reducing the error rate.

Claims

1. An automatic assembly mechanism for a water meter rotary lead seal, characterized in that: It includes a workbench (1) and a water meter positioning mechanism (0100), a water meter lead seal positioning and feeding mechanism (0200), a lead wire pull-back mechanism (0300), a lead wire lower guide mechanism (0400), a lead wire upper guide mechanism (0500), and a pressing and tightening mechanism (0600) respectively installed on it. The water meter positioning mechanism (0100) and the water meter lead seal positioning and feeding mechanism (0200) are arranged at intervals relative to each other. The lead wire guide mechanism (0400) is installed on the water meter positioning mechanism (0100). The lead wire pull-back mechanism (0300) is installed on the water meter lead seal positioning and feeding mechanism (0200). The lead wire guide mechanism (0400) and the lead wire pull-back mechanism (0300) are arranged at intervals relative to each other. The lead wire guide mechanism (0500) is arranged on one side of the water meter positioning mechanism (0100). The pressing and tightening mechanism (0600) is arranged between the water meter positioning mechanism (0100) and the water meter lead seal positioning and feeding mechanism (0200). The lead wire guide mechanism (0400) includes a lower guide connecting plate (21), a guide propulsion cylinder (22), and a lower lead wire guide (23). The guide propulsion cylinder (22) is installed on one side of the water meter positioning mechanism (0100) through the lower guide connecting plate (21). The lower lead wire guide (23) is connected to the guide propulsion cylinder (22) and is used to capture and guide the lead wire. The lead wire guide mechanism (0500) includes a first profile frame (24), a cross slide module (25), a module connecting plate (26), a rotary cylinder (27), a cylinder connecting plate (28), and an upper lead wire guide rod (29). The first profile frame (24) is installed on the workbench (1). The cross slide module (25) is installed on the upper part of the first profile frame (24) through the module connecting plate (26). The rotary cylinder (27) is installed on the cross slide module (25) through the cylinder connecting plate (28). The upper lead wire guide rod (29) is connected to the rotary cylinder (27). The pressing and tightening mechanism (0600) includes a second profile frame (30), an electric cylinder (31), a tightening connecting plate (32), a rotary motor (33), and a guide and tightening rod (34). The second profile frame (30) is n-shaped and is installed on the workbench (1) between the water meter positioning mechanism (0100) and the water meter lead seal positioning and feeding mechanism (0200). The electric cylinder (31) is installed on the upper part of the second profile frame (30). The rotary motor (33) is installed on the second profile frame (30) through the tightening connecting plate (32). The guide and tightening rod (34) is connected to the rotary motor (33).

2. The automatic assembly mechanism for a water meter rotary lead seal according to claim 1, characterized in that: The water meter positioning mechanism (0100) includes a first base (2), a pressing cylinder (3), a water meter positioning seat (4), a pressing mounting seat (5), a clamping plate (6), and a clamping head (7). The first base (2) is installed on the workbench (1), the water meter positioning seat (4) is installed on the upper surface of the first base (2), the pressing mounting seat (5) is installed on one side of the first base (2), the pressing cylinder (3) is installed on the upper part of the pressing mounting seat (5), and the clamping head (7) is connected to the pressing cylinder (3) through the clamping plate (6) and the clamping head (7) is located above the water meter positioning seat (4).

3. The automatic assembly mechanism for a water meter rotary lead seal according to claim 1, characterized in that: The cross-section of the lower lead wire guide (23) is V-shaped.

4. The automatic assembly mechanism for a water meter rotary lead seal according to claim 1, characterized in that: The water meter lead seal positioning and feeding mechanism (0200) includes a second base (9), a propulsion cylinder (10), a propulsion support plate (11), and a lead seal positioning fixture. The second base (9) is installed on the workbench (1), the propulsion cylinder (10) is installed on the upper part of the second base (9), and the lead seal positioning fixture is connected to the propulsion cylinder (10) through the propulsion support plate (11). The lead seal positioning fixture faces the side of the water meter positioning mechanism (0100).

5. The automatic assembly mechanism for a water meter rotary lead seal according to claim 4, characterized in that: The lead seal positioning fixture includes a first positioning block (12), a second positioning block (13), a guide block (14), and a spring (15). The first positioning block (12), the second positioning block (13), and the guide block (14) are arranged in a straight line at intervals at the front end of the push support plate (11). The first positioning block (12) and the guide block (14) are respectively connected to the push support plate (11). The second positioning block (13) is connected to the guide block (14) through the spring (15). The first positioning block (12) is provided with a cylindrical shaft, and the second positioning block (13) is provided with a cylindrical groove. The cylindrical shaft and the cylindrical groove are matched. The spring (15) pushes the guide block (14) to push the second positioning block (13), so that the lead seal (16) is pressed between the first positioning block (12) and the second positioning block (13).

6. The automatic assembly mechanism for a water meter rotary lead seal according to claim 4, characterized in that: The lead wire pull-back mechanism (0300) includes a lead wire pull cylinder (17), a finger clamping cylinder (18), a clamping fixture (19), and a clamping connecting plate (20). The lead wire pull cylinder (17) is installed on the lower part of the push support plate (11). The push support plate (11) has an inverted T-shaped structure with a rectangular notch on its horizontal plate. The lead seal positioning fixture is installed on the front edge of the rectangular notch. The finger clamping cylinder (18) is vertically inserted through the rectangular notch and connected to the push support plate (11) through the clamping connecting plate (20). The clamping fixture (19) is connected to the cylinder shaft on the upper part of the finger clamping cylinder (18).

7. The automatic assembly mechanism for a water meter rotary lead seal according to claim 1, characterized in that: The guide and tightening rod (34) is set vertically, and a deep horizontal groove is provided on its bottom surface. A shallow V-shaped groove perpendicular to the deep horizontal groove is also provided on the guide and tightening rod (34).

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